Function: Return the parent forum ID for the Legacy Forums abstraction layer.

Function: Should we use the WP Toolbar?

Function: Are we running username compatibility mode?

Function: Sanitize an ‘order’ parameter for use in building SQL queries.

Function: Escape special characters in a SQL LIKE clause.

Function: Sanitizes a pagination argument based on both the request override and the original value submitted via a query argument, likely to a template class responsible for limiting the result set of a template loop.